Use Insecure code operation pointer in C #

1. Using system;
2. Using system. Collections. Generic;
3. Using system. text;
5. Insecure namespace code
6. {
7. Unsafe class Program
8. {
9. Static void main (string [] ARGs)
10. {
11. Int x = 10;
12. // Declare two integer pointers
13. Int * PX, Py;
14. // Assign the X address to the integer pointer PX
15. Px = & X;
16. // The path where the py pointer and PX are stored
17. Py = px;
18. // Change the value of the address pointed to by pointer Px to 20 (that is, X)
19. * PX = 20;
21. // Convert the address value to an integer
22. Uint y = (uint) Px;
23. Console. writeline ("pointer to integer:" + y );
24. // Assign the integer address to the pointer
25. Int * Pd = (int *) y;
26. Console. writeline ("finding the value in the address through an integer address:" + * PD );
28. Console. writeline (X );
29. Console. Readline ();
30. }
31. }
32. }
34. /**
35. * The unsafe keyword can be used to modify methods, classes, and member variables to notify the compiler system to use unsafe code.
36. & The symbol is the address-taking operator, * is the content of the address, that is, the value.
37. */